Information about the series edition: The proven basic concept of Doppel-Klick has been expanded and differentiated for heterogeneous learning groups to provide targeted preparation for the intermediate school leaving certificate, connections to high school, and trainability. Differentiation is facilitated through transparent differentiation on two levels and additional materials for inclusive teaching. The principles include a clear progression in acquiring competencies, integrative and systematic learning, intercultural and interdisciplinary learning, consistent methodological training, and rigorous reading promotion. Self-assessment and the methodology of German as a major language are also emphasized. The structure is transparent and includes thematic chapters with two main competency areas and training units, as well as genres, authors, and media. There are training sessions on work techniques, spelling, and grammar, as well as workbooks that contain solutions, and a CD-ROM in two versions: the basic workbook for fundamental requirements and the workbook for advanced work.